Is double

Definition

Return true if value is a double.

Usage

addRule("field -> double")

Tests

@Test
public final void testRuleDoubleOk() throws Exception {
    UtilTest.testIt("double", "123", true);
    UtilTest.testIt("double", "-123", true);
    UtilTest.testIt("double", "-56789.3456789", true);
    UtilTest.testIt("double", "987654.3456789", true);
    UtilTest.testIt("double", String.valueOf(Double.MAX_VALUE), true);
    UtilTest.testIt("double", String.valueOf(Double.MIN_VALUE), true);
}

@Test
public final void testRuleDoubleNotOk() throws Exception {
    UtilTest.testIt("double", "!@#$%^&", false);
    UtilTest.testIt("double", "9*123 ", false);
    UtilTest.testIt("double", "9.34567%", false);
    UtilTest.testIt("double", "-  123. ", false);
}